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/05.2015/
opt_CRS
EN
12.2 Air Circuit Options
Return air filters with F5 efficiency
With this option, standard G4 air filters on return air will be replaced by high efficiency F5 filters with same dimen-
sions. These filters require a different setting of dirty filter differential switch. More efficient filters get clogged more
frequently, requiring shorter maintenance intervals.
Condensate pump installed inside the unit
This option is necessary when condensate evacuation by gravity is not possible. With piping connections to the top
(standard) the pump is installed in the A/C unit. With piping connections to the bottom (optional) the pump is deli-
vered loose.
The pump receives power supply from the e-box and sends a water level digital signal to C7000 controller.
• Use the pump within the following operating limits: maximum pumping head 10 m. With 10 m pumping head, and
no suction lift water flow is 4.5 l/h.
• Carry out the discharge pipe in PVC with 6x9 mm diameter provided with the pump from one of the openings
used for water and refrigerant pipes. Channel discharge tube to an appropriate drain, avoiding restrictions.
• Always ensure the box with the float switch is placed in an even and horizontal position.
• Test pump operation by pouring water into evaporator tray. CHECK FOR LEAKS.
• Preventing siphoning: cut discharge tube (2) above water level (3) of evaporator tray and direct end into large pipe
(4), allowing air break.
Maintenance
• This pump, like all mechanical equipment, requires maintenance.
• Every six months the float switch box should be removed, taking care to clean the filter, float switch and the reser-
voir thoroughly prior to reassembly. We recommend this to be done in spring and autumn, using an anti-bacterial
wash.
• Take great care to replace the float switch with the magnet facing upwards.
• Additional inline filters are available if required.
Troubleshooting
Fault: Pump runs all the time
1. Is the float switch positioned with the magnet to the top?
2. Is the reservoir lid (sensor) located firmly onto the reservoir, with the float switch located inside the reservoir,
around the sensor column?
3. Is there sludge inside the reservoir, preventing float switch from resting on the bottom? (This may occur if pump
has been in operation for some time without cleaning. Clean using an anti-bacterial wash.)
condensate tray
condensate pump
Float switch reservoir
